CPT International 01/2018

NEWS
KELLER HCW
Non-contact temperature measurement for steel castings
CellaCast measurement with monitor
(Photo: Keller HCW)
The temperature of the melt is one of
the most important, quality-relevant
process parameters in the production
of cast steel products.
In many cases, the temperature of
the liquid steel is controlled in the
melting kiln, holding kiln or casting ladle
by means of immersion measuring
lances. After heating, however, the
melt loses up to 10 °C per min. Depending
on the time between the last
measurement and the casting, the temperature
may have dropped considerably.
And especially the temperature of
the melt during the mold filling is of
crucial importance. The desired quality
can only be achieved by exact control
and compliance with the casting
temperatures.
In the meantime, infrared measuring
systems have established themselves
for measuring the temperature
of liquid metal, which automatically
record the temperature values in milliseconds
without contact and from a
safe distance.
In order to eliminate problems
caused by slag and oxidation on the
metal surface, the CellaCast measuring
system has a CSD (Clean Surface Detection)
function. A special algorithm filters
out the true measured values at the
clean spots when pouring the melt.
In numerous plants with grey cast
iron and nodular cast iron, the Cella-
Cast system is for several years successfully
in use. Now, the system has been
extended for higher temperatures with
the device version CellaCast PA 83 AF
14. This means that it can also be used
in the production of cast steel. With a
measuring range of up to 750 - 2,400 °C,
the pyrometer completely covers the
relevant temperature range.
Thanks to the two-colour (ratio) measuring
technique, the CellaCast system
delivers stable measured values despite
the extremely strong smoke and steam
generation during steel casting. Disturbing
flames are filtered out by the
ATD (Automatic Temperature Detection)
function.
Customer statements such as “The
system has paid for itself very quickly
thanks to the quality increase and the
acquisition of new information” confirm
the customer’s benefit, e. g. in the
production of turbocharger housings
and exhaust manifolds.
www.keller.de/its
FIRMA
Sintokogio Corp. buys foundry plant manufacturer
The Japanese Sintokogio Corporation
headquartered in Nagoya has taken
over the majority of foundry machine
manufacturer Omega Foundry
Machinery Ltd., Peterborough, United
Kingdom. Omega and Sinto have
been involved in a strategic partnership
since 2006.
The acquisition by Sintokogio gives
both companies the opportunity to
benefit from the broad portfolio in the
Sinto and Omega Managers signing the contract
in Peterborough, UK (Photo: Omega).
ConviTec
Vibration machines and conveying technology
Project planning – Manufacturing - Service
www.convitec.net · 069 / 84 84 89 7- 0
field of chemically bound sand combined
with the power of a global enterprise.
Among other things the company
offers technical solutions for
molding sand mixing, handling of
molds, sand regeneration as well as
core production.
The name of the company will be
changed to “Omega-Sinto” with immediate
effect, and the company’s leadership
will continue to manage the business
of the company and its subsidiaries.
“Being part of the world’s largest manufacturer
of foundry machines presents
significant opportunities for the company
and our customers,” according to
the Omega management.
www.ofml.net
58 Casting Plant & Technology 1 / 2018